Hi Verena, Very dynamic composition, and a well balanced shot. The low lighting is excellent, and I find the subject very intriguing. Good choice of leaving this in B&W, the combination of the steel, rusty rods, the colour of the stones and the grass is excellent. The perspective is nice, but has a single vanishing point. Hope you also took a shot a few steps to the right, also including the side of the structure. I would like to see what two or three vanishing points would do to the photo.